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Nasa 4K video shows what happens when you dissolve an effervescent tablet in a floating ball of water

After travelling three billion miles and nine years to perform the first ever flyby visit of Pluto and also discovering another planet Earth, Nasa has earned the right to have a bit of fun.

Astronaut Terry Virts shows what it looks like when an effervescence, such as an Alka-Seltzer tablet, dissolves in water in outer space. This demonstration was performed to test the new RED Epic Dragon camera on the International Space Station.

The delight on Mr Virts’ face as he dissolves the tablet and then plays with the water bubble is pure pleasure to watch. Yet the star of the show is watching the bubble elegantly glide through the air, the dissolved tablet creating bubbles inside the water that make it purely mesmerising.

Nasa captured the footage using a camera capable of recording four times the resolution of normal high-definition cameras (4K). Nasa is experimenting with these 4K cameras to see what value they could provide in capturing science data.

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